Derek Prior, RMN, CYQ Level 3 Personal Trainer (YMCA FIT) specialises in weight training for improving body composition. Derek has worked successfully with a range of clients whose goals have included weight loss, muscle building, sporting performance, and rehabilitation.

Derek is the author of "Foundations for a Better Physique", "The F.I.S.H. Training Log", and "Nutritional Journal".

Derek works as a freelance personal trainer in and around Eastbourne, East Sussex.